Dubs

Hi Guys,

I did a H/C/I swap on my car. Before things would be fine and the car runs smooth. Now it's really starting to run weird. In the beginning when I drive her, things are cool. But as time progress the same time I'm driving and pull up to a light, my RPM goes up to 2500 and wont let up. Even then while I'm driving the RPM stays up. I still have a stock computer, would that be the problem?

Thanks for any input you can give

kumay91

DID YOU TRY CHECKING FOR A VACCUME LEAK?

jagman454

Vac. leak, IAC, PCV, wouldnt hurt to check those

Dubs

Sorry for the noob question guys, but where do I start to look. Where do I find the Vacuum leaks?

jagman454

when the car is running try to use a smoke machine or something of that nature to find the leak, I'VE BEEN TOLD that you can use a faint stream of WD-40 idk, maybe air freshiner?

kumay91

i think one time i MAY have seen it done with some kind of intake(efi) cleaner, you can listen for leaks and then spray the cleaner where you here the leak, if you hear the rpms jump then there is a leak, but you really just have to listen should b that much of a problem

Dubs

Any more ideas..please?

84conversion50

you can pinch the lines at each ends of them and see if the rpms change to find the leak

ltrayne84

WD-40? thats just asking for something to burst into flames

kumay91

yea i wouldnt reccomend using that stuff